Feed mechanism for planers



March 25 1924. 1,487,711

H. L. BLOOD FEED MECHANISM FOR PLANERS Filed March 24, 1921 2 Sheets-Sheet 1 l\ auoentoz March 25 1924. 1,487,711

H. L. BLOOD FEED MECHANISM FOR'PLANERS Filed March 24, 1921 2 Sheets-Sheet 2 on: l I

I: 'IIIIIIIIIIIIIIIIIIIIIIII awwe/ntoz Patented Mar. 25, 1924. r I r PATEN orria.

HAROLD L. BLOOD, OF PLAIIIFIELD, NEW JERSEY, ASSIGNOR TO NILES-BEMENT-POND COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEWJERSEY.

FEED MECHANISM FOR PLANER-S.

Application filed March 24, 1921. Serial No. 455,058.

To aZZ whom it may concern:

Be it known that I. HAROLD L. B11001), a citizen of the United States, residing at Plainfield. in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Feed Mechanism for Planers, of which the following is a specification.

This invention relates to planers and particularly to the tool feeding and traversing mechanism of planers of the type described and illustrated in Patents No. 1,299,- 192 to Keefer & Greenleaf, and 1,321,203 to Greenlea-f & Blood. The primary object of the invention is to simplify the feeding mechanism now in use on such machines and to provide a single mechanism through which both the desired feeding and traversing of the tool may be accomplished without the employment of clutches or other shifting devices.

More specifically it is an object of the invention to connect the tool feeding and traversing screws to a feed motor through a mechanism comprising a lost motion box, the operating means within the box comprising relatively adjustable members whereby the amount of lost motion of the tool feed shaft may be varied to vary the amount of feeding movement given to the tool.

Vith the above and other objects in view which will appear as the description proceeds, the invention will now be described with reference to the drawings wherein:

Figure 1 is a side elevation of a planer embodying the present invention. 7

Fig. 2 is a front elevation thereof.

Fig. 3 is a fragmentary plan view of the machine illustrating the feed motor and its driving connections.

Fig. 4 is an enlarged fragmentary end view of the cross rail tool feeding mechanism.

Fig. 5 is a horizontal section thereof taken on the line 55 of 4.

Fig. 6 is a longitudinal section through the lost motion box feed mechanism and gear. taken on the line 6-6 of Fig. 7.

l 7 is a transverse section thereof taken on the line 77 of Fig. 6.

Referring particularly to Figs. 1 and 2 of the drawings, 1 represents the planer bed, the reciprocating table, 3 and ,4: the up rights or earnin s and 5 the archconnect planer embodying the more characteristic features of my invention. A reversible electric motor is indicated in the drawings at 6, the gearing connections between it and the table being of any usual or preferred form. When such a motor is used there is provided a suitable controller illustrated 7 diagrammatically in the aforesaid patents and in my copending application, Serial No. 308,558, filed June 10th, 1920. For operating certain parts of the controller and for other purposes there is provided a pilot switch 7 This switch is operated by means of a rod 8 connected to levers 9 and 10 which are engaged respectively by dogs 11 and 12 secured to the reciprocating table. These dogs are adjustable in position so as to regulate the length of the stroke.

Cooperating with the reciprocating table to act upon work carried thereby are one or more cutting tools. In the construction illustrated there is a vertically movable cross rail 13 which is fitted to vertical guides on the uprights '8 and 4:. Transversely movable along the cross rail 13 are one or more (two being illustrated) tool heads 14 and 15. Transversely threaded shafts or screws 16 are provided to respectively control the transverse movements of the tool heads 14: and 15, and a splined shaft 16 is provided for operating the tools vertically in the usual manner. These screws or shafts 16 can be moved manually when desired by means of a crank 17 as illustrated. For moving one or more of the tool heads by power. either to effect prelimi nary adjustment of the tools or to effect feeding thereof during the operation of the planer, I provide. an independent electric motor which is shown in the drawings at 18, it preferably being mounted upon. the arch 5. I v

The mechanism so far specifically described is clearly shown and described in the aforesaid patents and: since such meek the opposite direction. It will, therefore, be seen that in the relative position of the lugs as illustrated. the angulardistance w plus the angular distance y represents the lost motion through which the member 29 passes in each direction of its oscillation. The gear 26 is therefore given an oscillatory angular movement equal to the oscillatory movement of the shaft it less the angular movement represented by the sum of the arcs and y. The lugs 36 and 37 being on opposite sides of the gear 26, each lug is out of the path of adjustable movement of the other. By such a construction, the two lugs may be adjusted to a position directly opposite each I other and provide therefor for a variable lost motion from 0 to 360 less the arouate distance represented by the sum of the arcuate thicknesses of one of the lugs 38 and 38 plus one of the lugs 36 and 37. It will therefore be seen that with the mechanism illustrated, the extentof tool feed may be very widely varied to suit the conditions of the particular work in hand and the engagement of either lug 36 or 87-with its respective lug 38 or 38 provides an operative connection through the feed box for traversing the tools in either direction.

The side head 43, as illustrated in Fig. 1, is also adapted to be fed and traversed through the vertical feed shaft 21 and the lost motion feed connection illustrated at 25, 26, 27 and 28. The details of this mechanism are the same as those described in connection with the cross rail tool feed mechanism and therefore need not be further described herein.

By engaging the clutch 4A with its driving gear 45, the cross rail 13 may be raised or lowered by means of the motor 18 operating through shaft 46 and vertical scr ws 47.

What I claim is:

1. In a planer, the combination of a reciprocating table, a tool head, a feed screw for moving the head, a feed motor, mechanism including a single driving connection from the motor to the feed screw for intermittently and automatically feeoing the head from the motor in synchronismv ith the. table reciprocation, and means for con-' trolling the continuous operation of the motor for traversing the head, the feeding and traversing of the head taking place from the motor to the screw through the said single driving connection.

2. In a planer, the combination of arec-iprocating table, a tool head, a feed screw for moving the head, a feed motor, mech anism including a single driving connection from the motor to the feed screw for intermittently feeding the head from the motor in synchronism with the table reciprocation, means for controlling the continuous on eration of the motor for traversing the head,

the feeding and traversing of the head taking place from the motor to the screw through the said single driving connection, and the said mechanism including means for varying the amount of feeding movement given to the head.

3. In a planer, the combination of a reciprocating table, a tool head, a feed screw tor for traversing the head, the feeding and 7 traversing of the head taking place from the motor to the screw through the sa d single driving connection, and the said mechanism including lost motion means for varying the amount of feeding movement given to the head.

4. In a planer, the combination of a reciprocating table, a tool head, a feed screw for moving the head, a feed motor, adjustable means between the motor and feed screw for varyingthe amount of feeding movement given to the head, mechanism including the said adjustable means for intermittently and automatically feeding the head from the motor insynchronism with the table reciprocation, and means for controlling the continuous operation of the motor for traversing the head, the feeding and traversing of the head taking place from the motor to the screw through the said adjustable means.

5. In a planer, the combination of a reciprocating table, a tool head, a feed screw for moving the head, a feed motor, adjust-- able means comprising a driving lug driven by the motor and a driven lug operatively connected to the feed screw for feeding the head, means for adjusting one of such lugs to vary the amount of feeding movement given to the head, mechanism including the said adjustable means for intermittently and automatically feeding the head from the motor in sychronism with the table reciprocation, and means for controlling the continuous operation of the motor for traversing the head, the feeding and traversing of the head taking place from the motor to the screw through the said ad ustable means.

6. In a planer, the combination of a re ciprocating table, a tool head, a feed screw for moving the head, a feed motor, a gear operatively connected to the screw and adapted to be driven by the motor, adjustable means comprising a pair of relatively adjustable lugs between the motor and gear for varying the amount of feeding movement given to the head, the said lugs being on opposite, sides of the gear respectively,

ins? means for relatively adjusting the sai ligs, means adapted to be engaged b' the lugs or drivine' the gear, mechanism i eluding certain or the said means for intermittently and automatically feeding the head tr i motor in synchronism with the table reciprocation, and means for controlling the continuous operation of the inoto for t ing the head, the feeding an the head taki place from tl screw through the said adjr 7. In a plane, the combination of a reciprocating table, a tool head, a feed screw tor moving the head, a teed motor. adjustable 'i'eedinp; means comprising a it her driven by the motor and a member operativcly c nected to the feed screw, lug on one or me members, a pair of relatively adjustable lues comprising a part of the other mt l adapted to engage the first lug, i relatively adj Listing said pair of lu anism including the said adjustable means for intermittently and aut iat-ically feed ing the head from the motor in synchronism with the table reciprocation, and means for controlling the continuous operation or" the motor for traversing the head, the "feeding" and traversing of the head taking place from the motor to the screw through the said adjustable means.

8. In a tool feedingmechanism, the combination of a feed screw, a teed shaft, a member operatively connected to the shaft, a second member mounted coasially of the first member and operatively connected to the feed screw, a pair of relatively adjustable lugs mounted on one of the members in a relative position out of the path of movement of each other, and means on the other member adapted to be engaged by the said lugs for rotating the feed screw through a predetermined angg'ular distance as the shaft is oscillated, the said predetermined angular dis tance depending upon the relative angular positionof the said lugs.

9. In a tool feeding mechanism, the combination of a feed screw. a feed shaft, a member mounted coaXially of and operatively connected to the shaft, a second member mounted coaxially of the first member and operatively connected to the feed screw, pair of relatively adjustable lugs mounted on one of the members in a relative position out of the path of movement of each other, means for relatively adjusting; the lugs, and means on the other member adapted to be engaged by the said lugs for rotating, the feed screw through a predetermined angular distance as the shaft is oscillated, the said predetermined angular distance depending upon the relative angular position of the said. lugs.

10. In a tool feeding mechanism, the combination of a feed screw, a feed shaft, a

i lugs for rotatii predetei is oscillated, the

predetermined angular distance deg. n upon the relative position of th said lugs. a tool feeding niecl anism, the comt a feed screw, a feed shaft, a member opcratively connected to the daft, a driven member mounted coaxially of the driving; member and operacively connected to the feed screw, a pair oi relatively djustable lugs mounted on the driving member in a relative position out of the path of movement of each other, and means on the driven member adapted to be engaged by the said lugs for rotating; the feed screw through a predetermined angular distance as the shaft is oscillated. the said predeten ed angular distance depending upon the relative angular position of the said lugs.

in a tool feeding mechanism, the combination of a feed screw, a feed shaft, a member mounted on and secured to the shaft, :1 second member mounted on the first member and operatively connected to the feed screw, pair of relatively adjustable lugs mounted on one of the members on opposite sides respectively of the second member in a relative position out 01 the path of movement or" each other, and means on the other member adapted to be engaged by the said lugs for rotating the feed screw through a predetermined angular distance as the shaft is oscillated, the said predetermined angular distance depending upon the rela tire angular position of the said lugs.

13. In a tool feeding mechanism, the combination of a feed screw, a feed shaft, a member mounted on and secured to the shaft, a gear mounted on the member and operatively connected to the feed screw, a pair of relatively adjustable lugs mounted on the member at respectively opposite sides of the gear, means for relatively adjusting the lugs, and a pair or" lugs on the opposite sides of the gear adapted respectively to be engaged by the adjustable lugs for rotating the feed screw through a predetermined distance as the shaft is oscillated, the said predetermined angular distance depending upon the relative angular position of the said lugs.

In testimony whereof, 1 hereto afiix my signature.

HAROLD L. BLOOD. 

